package com.mic.netty.client;

import com.mic.netty.NettyConstant;
import com.mic.netty.codec.NettyMessageDecoder;
import com.mic.netty.codec.NettyMessageEncoder;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.timeout.ReadTimeoutHandler;

import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class NettyClient {
    private ScheduledExecutorService executorService = Executors.newScheduledThreadPool(1);
    EventLoopGroup group = new NioEventLoopGroup();

    public void connect(int port, String host) throws InterruptedException {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class)
                .option(ChannelOption.TCP_NODELAY, true)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new NettyMessageDecoder(1024 * 1024, 4,4));
                        ch.pipeline().addLast("NettyMessageEncoder", new NettyMessageEncoder());
                        ch.pipeline().addLast("ReadTimeoutHandler", new ReadTimeoutHandler(50));
                        ch.pipeline().addLast("LoginAuthReqHandler", new LoginAuthReqHandler());
                        ch.pipeline().addLast("HeartBeatReqHandler", new HeartBeatReqHandler());
                    }
                });
        try {
            ChannelFuture future = b.connect(
                    new InetSocketAddress(host, port),
                    new InetSocketAddress(NettyConstant.LOCALIP, NettyConstant.LOCAL_PORT)).sync();
            future.channel().closeFuture().sync();
        } finally {
            executorService.execute(() -> {
                try {
                    TimeUnit.SECONDS.sleep(1);
                    try {
                        connect(NettyConstant.PORT, NettyConstant.REMOTEIP);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            });
        }

    }

    public static void main(String[] args) throws Exception {
        new NettyClient().connect(NettyConstant.PORT, NettyConstant.REMOTEIP);
    }
}
